<form class="search-form" action="search" method="get">
    <fieldset>
        <label class="label">Поиск</label>
        <div class="input-container">
            <input class="search-field" id="q" type="text" name="q" value="<?= isset($_GET['q'])?$_GET['q']:'';?>" />
        </div>
            <input class="submit corner-right icons-16 icon-16-search-white" type="submit" name="search" value="Найти" />
    </fieldset>
</form><!-- .search-form -->

<a class="advanced-search icons-16 icon-16-plus" href="search"><span>Расширеный поиск</span></a>
<span class="example-line">Например: <a href="#" class="insert-question" rel="#q">Audi A8</a>  или  <a href="#"  class="insert-question" rel="#q">Chevrolet Aveo New</a></span>